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Finding the Fourth Proportional to 2,065.77, 3,098.84 and 605.07

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Solution

The fourth proportional to 2,065.77, 3,098.84 and 605.07 is: 907.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,065.77 : 3,098.84 = 605.07 : x
  2. Step 2: Convert to fraction form
    2,065.77/3,098.84 = 605.07/x
  3. Step 3: Cross multiply
    2,065.77x = 3,098.84 × 605.07
  4. Step 4: Simplify right side
    2,065.77x = 1,875,012.09
  5. Step 5: Solve for x
    x = 1,875,012.09/2,065.77
  6. Step 6: Final answer
    x = 907.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.